Ultra Absorption Mega Vitamin B-12 with Folic Acid as Methylcobalamin Highest Dosage 5000 mcg 60 Sublingual Lozenges Strawberry Flavor B12 is Essential for Good Health
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Life Extension, Vitamin B12, Methylcobalamin, 500 mcg, 100 Vegetarian Lozenges
The Optimal Vitamin B12 Dosage for Adults | NutritionFacts.org